|| List of recent Rotor Blade-related patents
| Cooling structures in the tips of turbine rotor blades|
A turbine rotor blade for a gas turbine engine is described. The turbine rotor blade includes an airfoil that includes a tip at an outer radial end.
| Cooling structures in the tips of turbine rotor blades|
A turbine rotor blade used in a gas turbine engine, which includes an airfoil having a tip at an outer radial edge, is described. The airfoil includes a pressure sidewall and a suction sidewall that join together at a leading edge and a trailing edge of the airfoil, the pressure sidewall and the suction sidewall extending from a root to the tip.
| Wind turbine with vertical axis|
A turbine, for example a wind turbine, is equipped with a rotor (1) with a vertical axis and a screens system (31, 32) for conducting wind and fluid to the rotor. The turbine is equipped with a direction device (57) which produces a direction signal, and a way (55, 56) to direct the screens system (31, 32) depending on the direction signal.
| Aircraft propulsion system and a method of controlling the same|
An aircraft propulsion system has a propulsive rotor assembly rotatable about an axis of rotation and comprising a plurality of blades and a rotationally fixed vane assembly located adjacent to the propulsive rotor assembly and arranged circumferentially around the axis of rotation. As airflow enters the propulsive rotor assembly, a portion of the airflow passes over the vane assembly which is configured to direct the airflow away from the rotor blades so as to reduce the relative velocity of the redirected airflow over the rotor blades.
| Method for making a wind turbine rotor blade half shell or wind turbine rotor blade and production mold therefor|
A method for waking a wind turbine rotor blade half shell includes arranging a fibrous material in a mold, which has an inner side predetermining an aerodynamic surface of the half shell and has a pinching edge defining the profile of a trailing edge of the half shell. A liquid plastics material surrounding the fibrous material is cured.
| Method for adjusting the radial gaps which exist between blade airfoil tips or rotor blades and a passage wall|
A method for measuring and adjusting gaps between a rotor and a stator of a machine using a sensor is provided. The measuring is conducted when the rotor is operated at a rotational speed below a nominal rotational speed of the machine and without the machine being in operation.
|Rotor blade with heating device for a wind turbine|
There is provided a wind power installation rotor blade comprising at least one electrically operable heating mat which is fixed in the interior of the rotor blade.. .
|Mobile hydro electric device|
A hydro electric generating device that is mobile. The hydro electric generating device may include a water tank with a turbine generator suspended within it.
|Monitoring one or more turbine engine rotor blades by correlating measurement data and reference data as a function of time|
A method is provided for monitoring one or more rotating turbine engine rotor blades using a processing system and a sensor having a measurement field. The method includes steps of: (i) providing measurement data from the sensor as a first of the rotor blades passes through the measurement field; (ii) correlating the measurement data with reference data as a function of time to provide correlation data; and (iii) processing the correlation data to determine a peak correlation value that corresponds to a point in time during the passage of the first of the rotor blades through the measurement field; wherein the correlating and the processing are performed by the processing system..
|Rotor assembly for an axial turbine|
A rotor assembly includes a drive shaft; a rotor having rotor blades, which each comprise a profiled rotor blade section and a blade fastening section; wherein each blade fastening section comprises a first contact region and a second contact region, the first contact region being at least indirectly supported on the blade fastening section of a first adjacent rotor blade, the second contact region being at least indirectly supported on the blade fastening section of a second adjacent rotor blade; the blade fastening sections are fastened in a formfitting manner and/or by a screw connection on the drive shaft, so that there is a connection between rotor blade and drive shaft on an axial end face of the blade fastening section. Intermediate elements having an elastic intermediate layer are between the blade fastening sections of adjacent rotor blades..
|Controller of wind turbine and wind turbine|
Techniques for operating a wind turbine are described herein. In an example, a wind turbine includes a tower, a nacelle coupled to the tower, a rotor rotatably coupled to the nacelle, at least one blade coupled to the rotor and configured to rotate about a pitch axis, and a controller to operate the wind turbine based on predicted wind speed values.
|Cooling device for a jet engine|
The present invention relates to a cooling device for a jet engine having an axial compressor with several compressor stages including a rotor with rotor blades, a stator with stator vanes and an annulus. In order to reduce the temperature of the components at the outlet of the high-pressure compressor by simple measures and hence to increase the efficiency of a jet engine, a slot-like branch opening surrounding the rotor for a cooling airflow diverted from the main airflow into a first cavity upstream of the rotor is provided upstream of the last compressor stage of the axial compressor, with passage openings being arranged in the rotor for passing on the diverted cooling airflow from the first cavity into a second cavity downstream of the rotor..
|System and method for performing an internal inspection on a wind turbine rotor blade|
A system (200) and method for performing an internal inspection on a rotor blade (16) of a wind turbine are disclosed. The system includes a sensing device (202), a cable (210) for raising and lowering the sensing device within the rotor blade, and a positioning device (206) attached to at least one of the sensing device and the cable.
|Method of fatigue testing a component|
A method of fatigue testing a component comprising the steps of machining a channel of predetermined depth and predetermined width in a surface of a component, applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, placing the component in an atmosphere containing air and sulphur dioxide at a predetermined temperature for a predetermined period of time to precondition the grain boundaries, and fatigue testing the component. The method is useful for determining the fatigue life of gas turbine engine discs or gas turbine engine rotor blades particularly the firtree shaped disc posts or the firtree shaped rotor blade roots..
|Method for operating a wind power plant|
The present invention concerns a method of operating a wind power installation, wherein the wind power installation has an aerodynamic rotor in the form of a horizontal-axis rotor having a hub with at least one rotor blade, and provided on the rotor is at least one load measuring means for detecting a wind loading on the rotor, the method includes the steps: rotating the rotor of the wind power installation without or with a slight wind loading for calibration of the load measuring means and in that case recording a load measurement with the load measuring means, and calibrating the load measuring means based on the load measurement and previously known weight forces occurring at the rotor.. .
|System and methods for controlling wind turbine|
A method of operating a wind turbine is provided. The wind turbine includes a rotor that is rotatably coupled to a generator that is positioned within a nacelle.
|Wind turbine rotor blade and wind turbine for wind power generation|
To provide a wind turbine rotor blade capable of protecting a base material in the blade tip portion of the wind turbine blade from liquid droplet erosion due to raindrops to improve durability of the wind turbine rotor blade, thereby lengthening the interval of maintenance of the wind turbine rotor blade. It is provided with a base material provided with an outer skin material formed of fiber-reinforced plastic, a protective coating having wear resistance that is applied over the entire surface of the base material, and a protective tape having wear resistance that is affixed to the leading edge portion of the protective coating in the blade tip portion..
|Adhesive for filling joints and gaps in rotor blades for wind power plants|
The present invention relates to two-component polyurethane compositions which on the one hand have a long open time and, even after extended exposure to a climate with high atmospheric humidity (e.g., 70% relative humidity), even after 40 minutes and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength. The composition comprises castor oil, at least one polyol having 5-8 hydroxyl groups, a mixture of two different polyether alcohols and/or polyester polyols on the basis of castor oil or soybean oil and at least one polyisocyanate.
|Multi-element rotor blade|
A main rotor assembly for a rotary wing aircraft includes a blade assembly secured to a rotor hub. The blade assembly includes a rotor blade and a slat positioned to define a slat gap between the rotor blade and the slat.
|Differential pitch control to optimize co-rotating stacked rotor performance|
A rotor system for a rotorcraft having at least one rotor blade pair operably associated with a differential pitch assembly operably for controlling a pitch angle of an upper rotor blade and the lower rotor blade in the rotor blade pair. Operation of the differential pitch assembly changes the pitch of the upper rotor blade more severely than the pitch of the lower rotor blade.
A stirrer having a motor; a hollow shaft that is drivable via the motor and is provided with at least one additive outlet opening, via which an additive passed through the hollow shaft can be discharged; and a rotor arranged on the hollow shaft and having rotor blades, characterized in that a second rotor having rotor blades is provided on the hollow shaft at a distance from the first rotor, and in that the at least one additive outlet opening is provided between the two rotors, wherein the rotors are designed and drivable such that, during operation, a negative pressure and a centrifugal force are generated in the intermediate space defined between the rotors.. .
|Adhesive for rotor blades for wind power plants|
The invention relates to two-component polyurethane compositions which have a long open time and, even alter extended exposure to a high-moisture climate (for example 70% relative humidity), even after 40 minutes, and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength, whereby a structural adhesive bond is created. The composition comprises castor oil, at least one alkoxylated aromatic diol, at least one polyol having 5 to 8 hydroxyl groups, and at least one polyisocyanate.
|Rotor blade for vertical axis wind turbine|
One embodiment of a rotor blade for a vertical axis wind turbine comprises a central portion having a central axis and at least two blade members. The blade members each have a proximal end attached to the central portion, a high drag side and a low drag side that is opposite the high drag side.
|Blade dovetail bottom|
A blade has an airfoil extending radially outwardly of a dovetail. The dovetail has edges that will be at circumferential sides of the blade when the blade is mounted within a rotor.
A wind turbine is provided. The wind turbine includes a stationary main shaft arranged within a nacelle of the wind turbine, a rotor hub including a hollow shell defining an interior and a plurality of rotor blades extending radially outwards from the rotor hub, wherein the rotor hub is rotatably mounted to the stationary main shaft via at least one bearing, wherein the at least one bearing is arranged within the interior of the rotor hub and connected to a section of the main shaft protruding into the interior of the rotor hub..
|Electrical wiring system for a rotor hub|
The electrical harness system is configured for routing a harness between a rotor yoke and a rotor blade. A recess in an inboard cap member is configured to house a connector and an associated harness.
|Self-starting savonius wind turbine|
A self-starting savonius wind turbine includes a frame, a rotor assembly that is rotatable about a central axis of rotation and an energy utilizing device operably connected to the rotor assembly. The rotor assembly has at least two rotors, each rotor having at least two rotor blades.
|System and method for identifying the likelihood of a tower strike where a rotor blade strikes the tower of a wind turbine|
A system for identifying the likelihood of a wind turbine rotor blade striking a wind turbine tower comprises a device for sensing bending of a wind turbine rotor blade and a device for sensing bending of a wind turbine tower. In a preferred embodiment long period grating (lpg) sensors are used to measure bending of the tower.
|Scroll portion structure for radial turbine or diagonal flow turbine|
In a scroll structure for a radial turbine configured such that a turbine rotor 02 is rotationally driven by causing exhaust gas to flow from a spiral scroll portion 4 formed in a turbine housing 1 toward a rotor blade 3 of the scroll portion 4 in a radial direction, and act on the rotor blade 3, then flow out in an axial direction, a heat radiation space portion is formed in a shroud portion 11 between the turbine housing 1 and a turbine chamber provided with the rotor blade 3.. .